Rotor



FIG. 1 is a perspective view of the rotor which embodies my new and original design therefore;

FIG. 2 front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a top plan view thereof; and,

FIG. 5 is a bottom plan view thereof.

The broken lines shown represent unclaimed subject matter and form no part of the claimed design. 

The ornamental design for a “rotor,” as shown and described. 